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Pump−probe experiments at the TEMPO beamline using the low‐α operation mode of Synchrotron SOLEIL |
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| Authors: | Mathieu G. Silly Tom Ferté Marie Agnes Tordeux Debora Pierucci Nathan Beaulieu Christian Chauvet Federico Pressacco Fausto Sirotti Horia Popescu Victor Lopez-Flores Marina Tortarolo Maurizio Sacchi Nicolas Jaouen Philippe Hollander Jean Paul Ricaud Nicolas Bergeard Christine Boeglin Bharati Tudu Renaud Delaunay Jan Luning Gregory Malinowski Michel Hehn Cédric Baumier Franck Fortuna Damjan Krizmancic Luigi Stebel Rudi Sergo Giuseppe Cautero |
| Affiliation: | 1. Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin, Gif sur Yvette91192, France;2. Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000Strasbourg, France;3. Sorbonne Universités, UPMC Université Paris VI, CNRS, Laboratoire de Chimie Physique – Matière et Rayonnement, Paris75005, France;4. Laboratoire de Physique de la Matiére Condensée, UMR 7643, CNRS and Ecole Polytechnique, Université Paris Saclay, Palaiseau91128, France;5. Institut des NanoSciences de Paris, Sorbonne Universités, UPMC, CNRS, UMR 7588, Paris75005, France;6. P2M – Institut Jean Lamour UMR7198, CNRS – Université de Lorraine, Vandoeuvre-les-Nancy54506, France;7. CSNSM, Université Paris Sud and CNRS/IN2P3, Batiment 104 et 108, Orsay91405, France;8. Laboratorio 9. TASC, IOM-CNR, SS 14 Km 163.5, Basovizza, I-34149Trieste, Italy;10. ELETTRA Sincrotrone Trieste SCpA, Area Science Park, Strada Statale 14 Km 163.5, I-34012Basovizza, Italy |
| Abstract: | The SOLEIL synchrotron radiation source is regularly operated in special filling modes dedicated to pump–probe experiments. Among others, the low‐α mode operation is characterized by shorter pulse duration and represents the natural bridge between 50 ps synchrotron pulses and femtosecond experiments. Here, the capabilities in low‐α mode of the experimental set‐ups developed at the TEMPO beamline to perform pump–probe experiments with soft X‐rays based on photoelectron or photon detection are presented. A 282 kHz repetition‐rate femtosecond laser is synchronized with the synchrotron radiation time structure to induce fast electronic and/or magnetic excitations. Detection is performed using a two‐dimensional space resolution plus time resolution detector based on microchannel plates equipped with a delay line. Results of time‐resolved photoelectron spectroscopy, circular dichroism and magnetic scattering experiments are reported, and their respective advantages and limitations in the framework of high‐time‐resolution pump–probe experiments compared and discussed. |
| Keywords: | time‐resolved spectroscopy pump– probe experiments |